38354644871 has 2 divisors, whose sum is σ = 38354644872. Its totient is φ = 38354644870.

The previous prime is 38354644847. The next prime is 38354644901. The reversal of 38354644871 is 17844645383.

It is a weak prime.

It is an emirp because it is prime and its reverse (17844645383) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38354644871 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38354644771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19177322435 + 19177322436.

It is an arithmetic number, because the mean of its divisors is an integer number (19177322436).

Almost surely, 2^38354644871 is an apocalyptic number.

38354644871 is a deficient number, since it is larger than the sum of its proper divisors (1).

38354644871 is an equidigital number, since it uses as much as digits as its factorization.

38354644871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 53.

The spelling of 38354644871 in words is "thirty-eight billion, three hundred fifty-four million, six hundred forty-four thousand, eight hundred seventy-one".